Boeing E-3 Sentry

The Boeing E-3 Sentry is an American military airborne warning and control system (AWACS) aircraft based on the Boeing 707 that provides all-weather surveillance, command, control and communications, to the United States, United Kingdom, France, Saudi Arabia, and NATO air defense forces. It is distinguished by the disc-shaped radome above the fuselage. Production ended in 1992 after 68 had been built.